from tkinter import *
print('Введите начальную координату x:')
x = int(input())
print('Введите начальную координату y:')
y = int(input())
print('Введите коэфицент увиличения N:')
N = int(input())
coords = [0, 0, 10, 0, 10, 10, 20, 10, 20, 20, 10, 20, 10, 30, 0, 30]
if N == 0 and x >= 0 and x <= 500 and y >= 0 and y <= 500:
    pass
elif N > 0 and 0 * N + x >= 0 and 0 * N + y >= 0 and 20 * N + x <= 500 and 20 * N + y <= 500:
    pass
elif N < 0 and 20 * N + x >= 0 and 20 * N + y >= 0 and 0 * N + x <= 500 and 0 * N + y <= 500:
    pass
else:
            print('Размер фигуры привышает максимальный размер порля')
            exit()


root = Tk()
root.title('Ит-марафон')
root.geometry('500x500')

canvas = Canvas(bg='white', width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)
canvas.create_polygon(coords[0] * N + x, coords[1] * N + y,
coords[2] * N + x, coords[3] * N + y,
coords[4] * N + x, coords[5] * N + y,
coords[6] * N + x, coords[7] * N + y,
coords[8] * N + x, coords[9] * N + y,
coords[10] * N + x, coords[11] * N + y,
coords[12] * N + x, coords[13] * N + y,
coords[14] * N + x, coords[15] * N + y)

root.mainloop()